package com.shusl.springcloud.controller;

import com.shusl.springcloud.service.DeptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import shusl.springcloud.pojo.Dept;

import java.util.List;

//提供Restful服务
@RestController
public class DeptController{
    @Autowired
    private DeptService deptService;

    @PostMapping("/dept/add")
    public boolean addDept(Dept dept) {
        return deptService.addDept(dept);
    }

    @RequestMapping("/dept/get/{id}")
    public Dept queryById(@PathVariable("id") Long id) {
        Dept dept = deptService.queryById(id);
        if (dept==null){//如果当前id值为空 抛出异常
            throw new RuntimeException("id=> "+ id+"不存在该用户,或者该信息无法找到");
        }
        return dept;

    }

    @RequestMapping("/dept/list")
    public List<Dept> queryAll() {
        return deptService.queryAll();
    }


    //获取一些配置的信息，得到具体的微服务
    @Autowired
    private DiscoveryClient client;


    //注册进来的微服务，获取一些信息。没有实际作用
    @RequestMapping("/dept/discovery")
    public Object discovery(){
        //获取微服务列表的清单
        List<String> services = client.getServices();
        System.out.println("discovery=>services "+services);

        //得到一个具体的微服务信息,通过具体的微服务id，7001中的applicationName
        List<ServiceInstance> instances = client.getInstances("SPRINGCLOUD-PROVIDER-DEPT");
        for (ServiceInstance instance : instances) {
            System.out.println(
                    instance.getHost()+"\t\t\t"+
                            instance.getPort()+"\t\t\t"+
                            instance.getUri()+"\t\t\t"+
                            instance.getServiceId());
        }
        return this.client;
    }
}